验证多个输入中的文件大小和类型

我有 3 个输入文件，我想在一个提交按钮表单事件 onSubmit="" 中对 3 个输入文件进行 JavaScript 验证

<form action="step2_crud_dev.php" method="post" enctype="multipart/form-data" class="form-horizontal" role="form" id="dataPribadi"  >
    <div>
    <input type="file" name="fUpload1" id="fileUpload1"/>
    <input type="file" name="fUpload2" id="fileUpload2"/>
    <input type="file" name="fUpload3" id="fileUpload3"/>
    </div>
    <div>
    <input type="submit" name="upload" value="upload" />
    </div>
</form>

编辑代码新代码可以工作，但仍然可以保存进程

$(document).ready(function(){
    $('#tbl_next').click(function(){
        //alert('hello');
        $('input[type="file"]').each(function(){
            var thisFile = $(this);
            var fileSize = thisFile[0].files[0].size;
            var fileType = thisFile[0].files[0].type;
            //alert(fileSize);

            if(fileSize>1048576){ //do something if file size more than 1 mb (1048576)
                alert(fileSize +" bites\n ukuran gambar terlalu besar");
                return false;
            }else{
                switch(fileType){
                    case 'image/png':
                    case 'image/gif':
                    case 'image/jpeg':
                    case 'image/pjpeg':
                        alert("Acceptable image file!");
                        break;
                    default:
                        alert('Unsupported File!');
                        return false;
                }
            }
        });
        $('form#dataPribadi').submit();
    });
});

将提交按钮的类型更改为普通按钮并使用onclick通过给它一个处理程序id as upload,

<form action="step2_crud_dev.php" method="post" enctype="multipart/form-data" class="form-horizontal" role="form" id="dataPribadi"  >
    <div>
        <input type="file" name="fUpload1" id="fileUpload1"/>
        <input type="file" name="fUpload2" id="fileUpload2"/>
        <input type="file" name="fUpload3" id="fileUpload3"/>
    </div>
    <div>
        <input type="button" id="upload" value="upload" />
    </div>
</form>

你的点击事件处理程序应该是，

$(document).ready(function(){
    $('#upload').click(function(){
        alert('hello');
        $('input[type="file"]').each(function(){
            var thisFile = $(this);
            var fileSize = thisFile[0].files[0].size;
            alert(fileSize);
        });
        $('form#dataPribadi').submit();
    });
});

更新的小提琴 http://jsfiddle.net/go4vaibhav/msuL0yta/33/